Polydactyly is a dominant trait that results in extra fingers and toes in humans. A man with polydactyly marries a woman with 10 fingers and toes. They have a child that has a normal number of digits. The phenotype of the man's father is unknown, but his mother has a normal phenotype. What are the genotypes of the married couple? (D = polydactyl allele; d = wild type allele)

Question

A. woman Dd, man dd
B. woman DD, man dd
C. woman dd, man DD
D. woman dd, man Dd
E. woman DD, man Dd or dd

Answer 1

D. woman dd, man Dd